Adafruit: 8x8 Yellow LED Matrix Panel
The adafriut 8*8 yellow Led matrix has been used in my mini project 2. I'm using it to display some simple pattern, Chinese characters and even some simple animation.
The code of the project is modified from the sample code provided by Dr. Yoder. And my code has been commited to my github: The github repository of Xinyu Cheng.
Here is a display sample of the Led Matrix:
To ensure the matrix works properly, we need to connect the four pins in the device to the Beagle Bone. Here is a picture for the connection:
As we can see in the picture, the VCC and GND are connected to the VCC and GND in the Bone. And the data pin is connected Pin D18, which is I2C2_SDA. Connect the clock pin to Pin D17, which is I2C2_SCL.